feat: Complete Company Migration Project and Fix Autocomplete Issues

- Implemented a comprehensive migration from a single Company model to specialized entities (Operators, PropertyOwners, Manufacturers, Designers).
- Resolved critical issues in search suggestions that were returning 404 errors by fixing database queries and reordering URL patterns.
- Conducted extensive testing and validation of the new entity relationships, ensuring all core functionality is operational.
- Updated test suite to reflect changes in entity structure, including renaming fields from `owner` to `operator`.
- Addressed display issues in the user interface related to operator and manufacturer information.
- Completed migration cleanup, fixing references to the removed `companies` app across migration files and test configurations.
- Established a stable testing environment with successful test database creation and functional test infrastructure.

memory-bank/features/autocomplete/search-suggestions-analysis.md

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+# Search Suggestions Analysis - COMPLETED ✅
+
+## Task
+Fix search suggestions broken with 404 errors on autocomplete endpoints.
+
+## FINAL RESULT: ✅ SUCCESSFULLY COMPLETED
+
+### Issues Found and Fixed
+
+#### 1. SearchView Database Query Issue ✅ FIXED
+**File**: `thrillwiki/views.py` (Line 105)
+- **Issue**: Used old `owner` field instead of `operator`
+- **Fix**: Changed `.select_related('owner')` to `.select_related('operator')`
+- **Status**: ✅ FIXED - No more database errors
+
+#### 2. URL Pattern Order Issue ✅ FIXED
+**File**: `rides/urls.py` 
+- **Issue**: `search-suggestions/` pattern came AFTER `<slug:ride_slug>/` pattern
+- **Root Cause**: Django matched "search-suggestions" as a ride slug instead of the endpoint
+- **Fix**: Moved all search and HTMX endpoints BEFORE slug patterns
+- **Status**: ✅ FIXED - Endpoint now returns 200 instead of 404
+
+### Verification Results
+
+#### Browser Testing ✅ CONFIRMED WORKING
+**Before Fix**:
+```
+[error] Failed to load resource: the server responded with a status of 404 (Not Found)
+[error] Response Status Error Code 404 from /rides/search-suggestions/
+```
+
+**After Fix**:
+```
+[05/Jul/2025 21:03:07] "GET /rides/search-suggestions/ HTTP/1.1" 200 0
+[05/Jul/2025 21:03:08] "GET /rides/?q=american HTTP/1.1" 200 2033
+```
+
+#### Curl Testing ✅ CONFIRMED WORKING
+**Before Fix**: 404 with Django error page
+**After Fix**: 200 with proper HTML autocomplete suggestions
+
+### Technical Details
+
+#### Root Cause Analysis
+1. **Database Query Issue**: Company model migration left old field references
+2. **URL Pattern Order**: Django processes patterns sequentially, slug patterns caught specific endpoints
+
+#### Solution Implementation
+1. **Fixed Database Queries**: Updated all references from `owner` to `operator`
+2. **Reordered URL Patterns**: Moved specific endpoints before generic slug patterns
+
+#### Files Modified
+- `thrillwiki/views.py` - Fixed database query
+- `rides/urls.py` - Reordered URL patterns
+
+### Autocomplete Infrastructure Status
+
+#### Working Endpoints ✅
+- `/rides/search-suggestions/` - ✅ NOW WORKING (was 404)
+- `/ac/parks/` - ✅ Working
+- `/ac/rides/` - ✅ Working  
+- `/ac/operators/` - ✅ Working
+- `/ac/manufacturers/` - ✅ Working
+- `/ac/property-owners/` - ✅ Working
+
+#### Search Functionality ✅
+- **Parks Search**: ✅ Working (simple text search)
+- **Rides Search**: ✅ Working (autocomplete + text search)
+- **Entity Integration**: ✅ Working with new model structure
+
+### Key Learning: URL Pattern Order Matters
+**Critical Django Concept**: URL patterns are processed in order. Specific patterns (like `search-suggestions/`) must come BEFORE generic patterns (like `<slug:ride_slug>/`) to prevent incorrect matching.
+
+### Status: ✅ TASK COMPLETED SUCCESSFULLY
+- ✅ Fixed 404 errors on autocomplete endpoints
+- ✅ Verified functionality with browser and curl testing
+- ✅ All search suggestions now working correctly
+- ✅ Entity integration working with new model structure
+- ✅ No remaining 404 errors in autocomplete functionality
+
+## Final Verification
+**Task**: "Fix search suggestions broken with 404 errors on autocomplete endpoints"
+**Result**: ✅ **COMPLETED** - All autocomplete endpoints now return 200 status codes and proper functionality